Stages of Drug Development:
| 1 | IND | Animal tests |
| 2 | IND Review by FDA and local IRB | Animal tests |
| 3 | Phase 1 | Healthy volunteers, tests safety |
| 4 | Phase 2 | Sick volunteers, tests effectiveness |
| 5 | Phase 3 | Larger scale, test effectiveness and adverse effects |
| 6 | Post-marketing | Review |
| 7 | NDA application | |
| 8 | FDA Review and decision | |
| 9 | FDA Review and decision | |
| 10 | FDA decision |